Revert removal of grammar checking and marking code

third_party/WebKit/Source/core/editing/spellcheck/TextCheckingHelper.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 71 matching lines @@
 };
 
 class TextCheckingHelper {
     WTF_MAKE_NONCOPYABLE(TextCheckingHelper);
     STACK_ALLOCATED();
 public:
     TextCheckingHelper(SpellCheckerClient&, const Position& start, const Position& end);
     ~TextCheckingHelper();
 
     String findFirstMisspelling(int& firstMisspellingOffset, bool markAll);
+    String findFirstMisspellingOrBadGrammar(bool& outIsSpelling, int& outFirstFoundOffset, GrammarDetail& outGrammarDetail);
+    String findFirstBadGrammar(GrammarDetail& outGrammarDetail, int& outGrammarPhraseOffset, bool markAll);
     bool markAllMisspellings();
+    void markAllBadGrammar();
 
 private:
     SpellCheckerClient* m_client;
     Position m_start;
     Position m_end;
 
+    int findFirstGrammarDetail(const Vector<GrammarDetail>& grammarDetails, int badGrammarPhraseLocation, int startOffset, int endOffset, bool markAll) const;
     bool unifiedTextCheckerEnabled() const;
 };
 
 void checkTextOfParagraph(TextCheckerClient&, const String&, TextCheckingTypeMask, Vector<TextCheckingResult>&);
 bool unifiedTextCheckerEnabled(const LocalFrame*);
 
 } // namespace blink
 
 #endif // TextCheckingHelper_h